EP0616277A3 - Water level regulating system. - Google Patents

Water level regulating system. Download PDF

Info

Publication number
EP0616277A3
EP0616277A3 EP19930117500 EP93117500A EP0616277A3 EP 0616277 A3 EP0616277 A3 EP 0616277A3 EP 19930117500 EP19930117500 EP 19930117500 EP 93117500 A EP93117500 A EP 93117500A EP 0616277 A3 EP0616277 A3 EP 0616277A3
Authority
EP
European Patent Office
Prior art keywords
water level
hydroelectric plant
phi
opening
guide vanes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19930117500
Other languages
German (de)
French (fr)
Other versions
EP0616277A2 (en
EP0616277B1 (en
Inventor
Kenzo Takeda
Kenichi C O Fuji Elec Kurotani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of EP0616277A2 publication Critical patent/EP0616277A2/en
Publication of EP0616277A3 publication Critical patent/EP0616277A3/en
Application granted granted Critical
Publication of EP0616277B1 publication Critical patent/EP0616277B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

A water level regulating system controlling the water level of a head tank of each of a plurality of hydroelectric plant installed in cascade along a stream by using an opening of guide vanes (201, 203) of a hydraulic turbine (202, 204) as a manipulated variable, and the water level of the head tank as a controlled variable. Each hydroelectric plant has a water level regulator (100A, 100B) constituting the water level regulating system. Each of the water level regulator (100A) of an upstream hydroelectric plant and the water level regulator (100B) of a downstream hydroelectric plant has a device (103, 106) varying PID parameters for controlling the water level in accordance with the opening ( phi 1, phi 2) of the guide vanes (201, 203), and a device (101, 104) varying a reference water level (Sv1', Sv2') to a set water level (Sv1, Sv2). The downstream water level regulator (100B) further includes a feedforward compensating element (107) which compensates a feedforward signal corresponding to the opening ( phi 1) of the guide vanes (201) of the upstream hydroelectric plant, and which varies its compensation characteristic by the opening ( phi 2) of the guide vanes of the downstream hydroelectric plant. This arrangement makes it possible to quickly stabilize the water level of the head tank which may vary owing to changes in the operating state of the turbines or in an intake volume. <IMAGE>
EP93117500A 1992-10-30 1993-10-28 Water level regulating system Expired - Lifetime EP0616277B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP315913/92 1992-10-30
JP4315913A JP2988163B2 (en) 1992-10-30 1992-10-30 Water conditioning operation control device

Publications (3)

Publication Number Publication Date
EP0616277A2 EP0616277A2 (en) 1994-09-21
EP0616277A3 true EP0616277A3 (en) 1994-11-30
EP0616277B1 EP0616277B1 (en) 1997-10-01

Family

ID=18071119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117500A Expired - Lifetime EP0616277B1 (en) 1992-10-30 1993-10-28 Water level regulating system

Country Status (6)

Country Link
US (1) US5472312A (en)
EP (1) EP0616277B1 (en)
JP (1) JP2988163B2 (en)
AT (1) ATE158876T1 (en)
DE (1) DE69314314T2 (en)
NO (1) NO933901L (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525907A1 (en) * 1995-07-06 1997-01-09 Hartmann & Braun Ag Self-adjustable control device and method for self-adjustment of this controller
US6422263B1 (en) * 2000-09-05 2002-07-23 Guy Kevin Spicer Nested and cascaded variable bias feedfoward and feedback flow and level control system
JP4893991B2 (en) * 2005-09-06 2012-03-07 株式会社デンソー Fuel pump
JP4516053B2 (en) * 2006-07-03 2010-08-04 三菱電機株式会社 Control device
GB0920387D0 (en) * 2009-11-20 2010-01-06 Bayram Peter J Waterfall hydro-electric power
FR2983536B1 (en) * 2011-12-01 2018-05-11 Electricite De France METHOD FOR MANAGING TURBINE WATER FLOW OF A PLURALITY OF HYDROELECTRIC PLANTS
CN108958179B (en) 2012-04-05 2021-07-30 鲁比康研究有限公司 Monitoring of automated irrigation canals
FR3030640B1 (en) * 2014-12-22 2017-01-27 Electricite De France SYSTEM FOR CONTROLLING WATER FLOW TURBINE OF A PLURALITY OF HYDROELECTRIC PLANTS
CN105182880A (en) * 2015-09-28 2015-12-23 史仁朋 Automatic control system for water conservancy
CN106126923B (en) * 2016-06-23 2018-11-16 贵州乌江水电开发有限责任公司洪家渡发电厂 Basin step water,tap power generation compensation method and system
CN110374789B (en) * 2019-07-04 2020-12-04 南方电网科学研究院有限责任公司 PID parameter switching method and device for speed regulator of hydraulic turbine set
CN110778447A (en) * 2019-11-04 2020-02-11 云南电网有限责任公司电力科学研究院 No-load PID parameter optimization method for speed regulator of mixed-flow hydraulic generator
US11274648B2 (en) * 2020-01-14 2022-03-15 Ric Enterprises Pumped storage system with waterfall control subsystem
CN111734576B (en) * 2020-05-27 2021-10-01 怀化沅江电力开发有限责任公司洪江水力发电厂 Coordinated optimization method and system for blades of water turbine speed regulator with refining and distinguishing functions
CN117794816A (en) * 2021-10-29 2024-03-29 利乐拉瓦尔集团及财务有限公司 Virtual pressure-based control system and method for filling a machine flow regulator valve
CN116044645B (en) * 2023-01-09 2024-01-05 中国长江电力股份有限公司 Power feedforward control correction method for speed regulator of hydroelectric generating set

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724082A (en) * 1951-11-02 1955-11-15 Bailey Meter Co Motor regulating system for fluid level control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524686B1 (en) * 1970-12-16 1977-02-05
JPS5036847A (en) * 1973-08-06 1975-04-07
DE2812820C2 (en) * 1978-01-31 1986-04-03 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Control device for a steam turbine
US4497171A (en) * 1981-12-22 1985-02-05 The Garrett Corporation Combustion turbine engine
US4611969A (en) * 1985-08-19 1986-09-16 Carrier Corporation Calibrating apparatus and method for a movable diffuser wall in a centrifugal compressor
US4662817A (en) * 1985-08-20 1987-05-05 The Garrett Corporation Apparatus and methods for preventing compressor surge
US5165845A (en) * 1991-11-08 1992-11-24 United Technologies Corporation Controlling stall margin in a gas turbine engine during acceleration

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724082A (en) * 1951-11-02 1955-11-15 Bailey Meter Co Motor regulating system for fluid level control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DANG VAN MIEN ET AL.: "Conduite centralisée et régulation de cascades d'usines hydroélectriques.", JOURNEES D'ETUDES ORGANISEES PAR LES SECTIONS 11 ET 12 DE LA S.E.E.; SOCIETE DES ELECTRICIENS, DES ELECTRONICIENS ET DES RADIOELECTRICIENS; FEBRUAR 2 AND 3. 1978, PARIS, FR., pages 1 - 18 *

Also Published As

Publication number Publication date
EP0616277A2 (en) 1994-09-21
NO933901L (en) 1994-05-02
JPH06149306A (en) 1994-05-27
EP0616277B1 (en) 1997-10-01
DE69314314D1 (en) 1997-11-06
DE69314314T2 (en) 1998-03-05
ATE158876T1 (en) 1997-10-15
JP2988163B2 (en) 1999-12-06
NO933901D0 (en) 1993-10-28
US5472312A (en) 1995-12-05

Similar Documents

Publication Publication Date Title
EP0616277A3 (en) Water level regulating system.
CA2119246A1 (en) Closed loop fuel control system and method
ATE123446T1 (en) FLOW CONTROL.
ES8700731A1 (en) Compressor surge control.
EP1072777A3 (en) Fuel metering control system for internal combustion engine
JPS5487319A (en) Fuel control equipment of gas turbine
BE899316A (en) AUTOMATIC ADJUSTMENT SOUP FOR THE SYSTEM REGULATOR DEPRESSION, PARTICULARLY MILKING
KR830003777A (en) Reactor Control Method Using Variable Set Point by Temperature Load
US4976108A (en) Turbine efficient valve position computer
HULL Automatic pressure control system for the Wright Laboratory Compressor Research Facility(M. S. Thesis)
AU7717891A (en) Hydraulic safety and regulating system
BR0009508A (en) Process and device for regulating a steam turbine with steam intake
JPS5755416A (en) Controlling method for flow rate of cooling water
SU645135A1 (en) System for regulating live steam pressure in power plants
DE69126981T2 (en) Guide for hydraulic reaction turbines
JPS57113926A (en) Fuel control device
JPS57127401A (en) Method for controlling concentrating vessel
Yamane et al. Design of limit-tracking systems incorporating a turbofan engine with constant disturbances
JPS6450992A (en) Output controller for nuclear power plant
SU699216A1 (en) Spent steam temperature regulator downstream of counterpressure-operated turbine
JPS5529023A (en) Controlling of pump operational number
GB2273531B (en) Environment compatible wind motor
FR2685791B1 (en) METHOD FOR OPTIMIZING A DEVICE FOR REGULATING AND DAMPING A POLYPHASIC FLOW AND DEVICE OBTAINED BY THE PROCESS.
JPS5779242A (en) Air-to-fuel compensator
JPS55107007A (en) Controller for turbine for driving feed water pump

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940222

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE FR LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR LI

17Q First examination report despatched

Effective date: 19950202

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19971001

REF Corresponds to:

Ref document number: 158876

Country of ref document: AT

Date of ref document: 19971015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69314314

Country of ref document: DE

Date of ref document: 19971106

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001023

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011010

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011114

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

REG Reference to a national code

Ref country code: FR

Ref legal event code: D6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST